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devel@ovirt.org

June 2014

60 participants
117 discussions

[Devel] Proposing Yedidyah Bar David as oVirt Hosted Engine Setup maintainer
by Sandro Bonazzola 14 Jan '15

14 Jan '15

Hi, I would like to propose Yedidyah Bar David as oVirt Hosted Engine Setup co-maintainer. Yedidyah contributed to oVirt Hosted Engine Setup since early design phase and contributed dozens of patches. Your response would be appreciated. Thanks in advance. -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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[QE] Hardening Guide
by Sandro Bonazzola 17 Jul '14

17 Jul '14

Hi, while I was working on Bug 1097022 - ovirt-engine-setup: weak default passwords for PostgreSQL database users I was wondering where to write hardening tips described in comment #18. It looks like we don't have any page on oVirt wiki about hardening. Anyone interested in contributing to such page? I guess it can be created as http://www.ovirt.org/OVirt_Hardening_Guide Thoughts? -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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Update on UI column sort infra issues
by Vojtech Szocs 08 Jul '14

08 Jul '14

Hi guys, just a quick update on issues related to UI column sort infra. The client-side sorting fix [1] is now merged in master branch. The server-side sorting fix [2] is pending review. Also note that Lior merged a patch [3] which greatly simplifies code when making text-based columns *client-side* sortable, for example: TextColumnWithTooltip<SomeEntity> nameColumn = ... instead of this: // for text-based columns, need to provide separate Comparator // that (typically) uses LexoNumericComparator for comparison nameColumn.makeSortable(someEntityPropertyComparator); you can do this: // uses LexoNumericComparator to compare column's text values nameColumn.makeSortable(); -- [1] http://gerrit.ovirt.org/#/c/28392/ ... where items would disappear from grid when activating client-side column sorting [2] http://gerrit.ovirt.org/#/c/28557/ ... where triggering server-side sorting on a given column might corrupt the actual search query dispatched by the model [3] http://gerrit.ovirt.org/#/c/28670/ -- Regards, Vojtech

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oVirt.js GWT wrapper prototype
by Vojtech Szocs 08 Jul '14

08 Jul '14

------=_Part_26595393_401944553.1403609366320 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Hello everyone, following the announcement of oVirt.js prototype, I've developed a sample GWT wrapper that provides Java API to oVirt.js for all GWT applications. Please find the GWT wrapper patch attached. It bundles oVirt.js & Lo-Dash libraries via GWT module (SdkGwtWrapper) providing Java-like API based on oVirt.js. In order for WebAdmin to use oVirt.js GWT wrapper, all we have to do is add following into WebAdmin.gwt.xml (GWT module descriptor): <inherits name="org.ovirt.engine.sdk.gwt.SdkGwtWrapper" /> and add following into pom.xml (Maven project descriptor): <dependency> <groupId>${engine.groupId}</groupId> <artifactId>ovirt-js-gwt-wrapper</artifactId> <version>${engine.version}</version> <scope>provided</scope> </dependency> and that's it. The Java API takes inspiration from oVirt.js API. For example, to add new DataCenter: // Create data object template, 'name' and 'local' are required. DataCenterTemplate dcTemplate = DataCenterTemplate.create( "test-dc", // name false // local ); // Set optional parameters such as 'description', if necessary. dcTemplate.setDescription("my-desc"); // Obtain DataCenter resource collection. ResourceCollection<DataCenter> dcColl = Sdk.get().api().getDataCenters(); // Add new DataCenter by running 'add' operation on 'dcColl'. dcColl.add(dcTemplate).success(new SuccessCallback<DataCenter>() { @Override public void onSuccess(DataCenter dc) { Window.alert("Added: " + dc.getName()); } }).run(); The concept of resource, resource collection and operation is the same as presented in oVirt.js. dc.setName("test-dc-updated"); dc.setDescription("test") dc.update().run(); // we could register 'success' callback here You can see the full example by looking at SdkGwtWrapperTest class, located in WebAdmin codebase (org.ovirt.engine.ui.webadmin.sdk_test). Note that 'DataCenter' and 'DataCenterTemplate' will probably be auto-generated from oVirt Engine REST API definition (XSD/RSDL). As mentioned in my previous email, oVirt.js GWT wrapper ("overlay") can be initially part of ovirt-engine repo, while oVirt.js project deserves (in my opinion) a separate repo on its own. 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2 2

Github Repositories
by Saggi Mizrahi 02 Jul '14

02 Jul '14

We are moving all ovirt stuff from my own user to the newly created ovirt-infra group on github. Update your git remotes! https://github.com/ovirt-infra

9 10

[ANN] oVirt 3.5.0 Second Alpha is now available for testing
by Sandro Bonazzola 01 Jul '14

01 Jul '14

The oVirt team is pleased to announce that the 3.5.0 Second Alpha is now available for testing. Feel free to join us testing it! You'll find all needed info for installing it on the release notes page, already available on the wiki [1]. A new oVirt Live iso is already available for testing[2] including all available updates from CentOS. An oVirt Guest Tools iso is now available too[3]. A new oVirt Node build will be available soon as well. Please note that mirrors will need a couple of days before being synchronized. If you want to be sure to use latest rpms and don't want to wait for the mirrors, you can edit /etc/yum.repos.d/ovirt-3.5.repo commenting the mirror line and removing the comment on baseurl line. Known Issues You can't add hosts to 3.5 clusters until a new VDSM build with 3.5 compatibility level will be released (All in One won't work). [1] http://www.ovirt.org/OVirt_3.5_Release_Notes [2] http://resources.ovirt.org/pub/ovirt-3.5-pre/iso/ovirt-live-el6-3.5.0-alpha… [3] http://resources.ovirt.org/pub/ovirt-3.5-pre/iso/ovirt-guest-tools/ovirt-gu… -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

3 2

[vdsm] Infrastructure design for node (host) devices
by Martin Polednik 30 Jun '14

30 Jun '14

Hello, I'm actively working on getting host device passthrough (pci, usb and scsi) exposed in VDSM, but I've encountered growing complexity of this feature. The devices are currently created in the same manner as virtual devices and their reporting is done via hostDevices list in getCaps. As I implemented usb and scsi devices, the size of this list grew almost twice - and that is on a laptop. Similar problem is with the devices themselves, they are closely tied to host and currently, engine would have to keep their mapping to VMs, reattach back loose devices and handle all of this in case of migration. I would like to hear your opinion on building something like host device pool in VDSM. The pool would be populated and periodically updated (to handle hot(un)plugs) and VMs/engine could query it for free/assigned/possibly problematic devices (which could be reattached by the pool). This has added benefit of requiring fewer libvirt calls, but a bit more complexity and possibly one thread. The persistence of the pool on VDSM restart could be kept in config or constructed from XML. I'd need new API verbs to allow engine to communicate with the pool, possibly leaving caps as they are and engine could detect the presence of newer vdsm by presence of these API verbs. The vmCreate call would remain almost the same, only with the addition of new device for VMs (where the detach and tracking routine would be communicated with the pool).

5 6

[ANN] oVirt 3.5 Test Day - Tomorrow Jul 1st
by Yedidyah Bar David 30 Jun '14

30 Jun '14

Hi all, Tomorrow Jul 1st we'll have oVirt 3.5.0 test day. On this day all relevant engineers will be online ready to support any issues you find during install / operating this new release. Just make sure you have 1 host or more to test drive the new release. If you're curious to see how it works, this is your chance. Thanks again for everyone who will join us tomorrow! Location #ovirt irc channel Please communicate here to allow others to see any issues What In this test day you have a license to kill ;) Follow the documentation to setup your environment, and test drive the new features. Please remember we expect to see some issues, and anything you come up with will save you when you'll install final release Remember to try daily tasks you'd usually do in the engine, to see there are no regressions. Write down the configuration you used (HW, console, etc) in the report etherpad[1]. Documentation Release notes: http://www.ovirt.org/OVirt_3.4.0_release_notes Features pages links: http://bit.ly/17qBn6F If you find errors in the wiki please annotate it as well in report etherpad [1] Prerequisites / recommendations Use CentOS or RHEL 6.5 only. 6.4 is unsupported due to various issues (sanlock, libvirt, etc). Use Fedora 19 or 20. Latest RPMs repository to be enabled for testing the release are listed in the release notes page [2]. NEW issues / reports For any new issue, please update the reports etherpad [1] Feature owners, please make sure: your feature is updated and referenced on release page [2]. you have testing instruction for your feature either on test day page [3] or in your feature page. your team regression testing section is organized and up to date on test day page [3]. [1] http://etherpad.ovirt.org/p/3.5-testday-1 [2] http://www.ovirt.org/OVirt_3.5_Release_Notes [3] http://www.ovirt.org/OVirt_3.5_TestDay Thanks. -- Yedidyah Bar David, RHEV Integration team

1 1

ovirt-3.5 test day: Package oVirt windows guest tools ISO and put it in ovirt repositories
by Einav Cohen 30 Jun '14

30 Jun '14

------=_Part_539285_2013995182.1404136603229 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Hi Lev, I am assigned to test the feature in $subject as part of the ovirt-3.5 test day. it says in [1] to "Talk to Lev" (attached). So I'm talking :) - in the BZ [2] description, it mentions that it would be nice to (a) have the windows guest tools ISO pre-populated in the ISO domain, but as a first step - (b) virtio-win should be RPM packaged and put it in ovirt (yum?) repositories. IIUC - neither (a) nor (b) were done - the ISO was simply put in resources.ovirt.org (not RPM packaged or anything like that) - correct? - which ISO should I use for the test-day? the one that appears in comment #5 in [2] as "master"? "3.5.0 pre release"? something else? - any particular windows versions that I should test (or, should NOT test)? - anything else that I should know about this feature? anything in particular that I should focus on? ---- Regards, Einav [1] https://docs.google.com/spreadsheet/ccc?key=0AuAtmJW_VMCRdHJ6N1M3d1F1UTJTS1… [2] Bug 1026930 - OVIRT35 - [RFE] Package oVirt windows guest tools ISO and put it in ovirt repositories [https://bugzilla.redhat.com/show_bug.cgi?id=1026930] ------=_Part_539285_2013995182.1404136603229 Content-Type: image/png; name=TalkToLev.png Content-Disposition: attachment; filename=TalkToLev.png Content-Transfer-Encoding: base64 iVBORw0KGgoAAAANSUhEUgAABKUAAAB6CAYAAABumuCiAAAABHNCSVQICAgIfAhkiAAAAAlwSFlz AAAOxAAADsQBlSsOGwAAIABJREFUeJzsvXtcVNX+//8e4iIwisAM3k6pSKKiKagf8wqKpih2vJRp mtZRux/rWKapKZapafVVHydvqKdCOIri+ZTlOR4ruj40xI7ZKUX9kIogN7nMIHd5/f7wN7uZzd5r 9gwDGLyfj8d+MHvWXuv9Xu/3e73XmsWePVRUVARnj+vXr+Ppp5/Grl27pPe++uorREVF4b777sPG 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2 1

scale & hooks
by Michal Skrivanek 30 Jun '14

30 Jun '14

Hi, just thinking about the recent stats hook[1] by Dima and scale, It is a very nice hook and quite useful for the scale testing - ( though when focus is on engine I'd suggest to use FakeVDSM instead to eliminate all the bottlenecks on VDSM side.) One issue I see - since this is a very high-profile call, every 15s time number of VMs - is with the hook invocation. Currently the hook mechanism always go through the hooks dit and does stat() call to see script is there or not… it certainly doesn't matter on small scale but when the system is on the edge every IO on local FS cost something…. Would be nice if the hook mechanism is enhanced in general, figure out which hooks are relevant only at the startup and don't waste time passing domainXML every single time when the hook is not there Thanks, michal [1] http://gerrit.ovirt.org/#/c/25927/

4 4

Re: [ovirt-devel] Failed to run "make rpm" on VDSM latest master
by Saggi Mizrahi 30 Jun '14

30 Jun '14

We have ioprocess in EPEL and brew builds for el6\7, and builds for f19\f20 in bodhi. There is no such thing as "pushing to stable". In order to be deemed stable a package has to sit there for 30 days without negative karma or get enough (3) positive karma. We have notified on the mailing list that ioprocess is in need for karma. In any case, you should start getting used to fetching ioprocess builds from updates-testing when working on the master branch as we are not going to wait for a month before adding capabilities to VDSM after adding a feature to ioprocess (or any other external dependency). There is no reason for VDSM's master branch to only use RPMs from stable repos. Quite the contrary, the reason that updates-testing exists is so that consumers of the RPM can test the impending release and make sure it works before it is delivered to the general public. Further more, after using a build from updates-testing with VDSM and seeing that it works it would be most appreciated if you supply give karma to accelerate the process of getting a released to the stable repo. For more information: https://fedoraproject.org/wiki/QA:Updates_Testing Links to builds: https://brewweb.devel.redhat.com/packageinfo?packageID=47301 https://admin.fedoraproject.org/updates/search/ioprocess?_csrf_token=adc891… > > On Thu, Jun 26, 2014 at 01:38:45PM -0400, Nir Soffer wrote: > > ----- Original Message ----- > > > From: "Dan Kenigsberg" <danken(a)redhat.com> > > > To: "Nir Soffer" <nsoffer(a)redhat.com> > > > Cc: "ybronhei" <ybronhei(a)redhat.com>, "Oved Ourfali" <ovedo(a)redhat.com>, > > > "Eli Mesika" <emesika(a)redhat.com>, "Yeela > > > Kaplan" <ykaplan(a)redhat.com>, "Saggi Mizrahi" <smizrahi(a)redhat.com> > > > Sent: Thursday, June 26, 2014 8:11:59 PM > > > Subject: Re: Failed to run "make rpm" on VDSM latest master > > > > > > On Thu, Jun 26, 2014 at 11:59:13AM -0400, Nir Soffer wrote: > > > > ----- Original Message ----- > > > > > From: "ybronhei" <ybronhei(a)redhat.com> > > > > > To: "Oved Ourfali" <ovedo(a)redhat.com>, "Eli Mesika" > > > > > <emesika(a)redhat.com> > > > > > Cc: "Nir Soffer" <nsoffer(a)redhat.com>, "Yeela Kaplan" > > > > > <ykaplan(a)redhat.com>, "Saggi Mizrahi" <smizrahi(a)redhat.com> > > > > > Sent: Thursday, June 26, 2014 2:22:16 PM > > > > > Subject: Re: Failed to run "make rpm" on VDSM latest master > > > > > > > > > > On 06/26/2014 07:53 AM, Oved Ourfali wrote: > > > > > > cc-ing also Yeela and Saggi. > > > > > > > > > > > > Oved > > > > > > > > > > > > ----- Original Message ----- > > > > > >> From: "Eli Mesika" <emesika(a)redhat.com> > > > > > >> To: "Yaniv Bronheim" <ybronhei(a)redhat.com>, "Nir Soffer" > > > > > >> <nsoffer(a)redhat.com> > > > > > >> Cc: "Oved Ourfalli" <oourfali(a)redhat.com> > > > > > >> Sent: Wednesday, June 25, 2014 11:34:24 PM > > > > > >> Subject: Failed to run "make rpm" on VDSM latest master > > > > > >> > > > > > >> > > > > > >> Hi, I had applied Nir patch and tried to create rpms , and this is > > > > > >> what I > > > > > >> have got : > > > > > >> > > > > > >> error: Failed build dependencies: > > > > > >> python-ioprocess >= 0.5-1 is needed by > > > > > >> vdsm-4.15.0-185.git5b501bf.el6.x86_64 > > > > > >> > > > > > >> > > > > > >> Then I had switched to the master branch and got the same > > > > > >> > > > > > >> How can I install this new dependency ? > > > > > >> > > > > > >> > > > > > >> Thanks > > > > > >> Eli Mesika > > > > > >> > > > > > >> > > > > > solved? > > > > > just yum install python-ioprocess > > > > > i will update vdsm_Developers wiki page > > > > > > > > # yum install python-ioprocess > > > > No package python-ioprocess available. > > > > > > > > Looks like broken (again) master to me > > > > > > # yum --enablerepo=epel-testing install python-ioprocess > > > > > > Fixed this for me. Saggi/Yeela, could you push it to stable, and produce > > > a > > > f19 build? That would help plenty of us. > > > > This patch should fix the situation for everyone, allowing easy testing. > > http://gerrit.ovirt.org/29304 > > > > Nir >

3 4

XML benchmarks
by Francesco Romani 30 Jun '14

30 Jun '14

------=_Part_23935490_2012384362.1403872214216 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Hi, Due to the recent discussion (http://gerrit.ovirt.org/#/c/28712/) and as part of the ongoing focus on scalability and performances (http://gerrit.ovirt.org/#/c/17694/ and many others), I took the chance to do a very quick and dirty bench to see how it really cost to do XML processing in sampling threads (thanks to Nir for the kickstart!), and, in general, how much the XML processing costs. Please find attached the test script and the example XML (real one made by VDSM master on my RHEL6.5 box). On my laptop: $ lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 2 Core(s) per socket: 2 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 58 Model name: Intel(R) Core(TM) i7-3520M CPU @ 2.90GHz Stepping: 9 CPU MHz: 1359.375 CPU max MHz: 3600.0000 CPU min MHz: 1200.0000 BogoMIPS: 5786.91 Virtualization: VT-x L1d cache: 32K L1i cache: 32K L2 cache: 256K L3 cache: 4096K NUMA node0 CPU(s): 0-3 8 GiBs of RAM, running GNOME desktop and the usual development stuff xmlbench.py linuxvm1.xml MODE 300 MODE is either 'md' (minidom) or 'cet' (cElementTree). This will run $NUMTHREADS threads fast and loose without synchronization. We can actually have this behaviour if a customer just mass start VMs. In general I expect some clustering of the sampling activity, not a nice evenly interleaved time sequence. CPU measurement: just opened a terminal and run 'htop' on it. CPU profile: clustered around the sampling interval. Usage negligible most of time, peak on sampling as shown below 300 VMs minidom: ~38% CPU cElementTree: ~5% CPU 500 VMs minidom: ~48% CPU cElementTree: ~6% CPU 1000 VMs python thread error :) File "/usr/lib64/python2.7/threading.py", line 746, in start _start_new_thread(self.__bootstrap, ()) thread.error: can't start new thread I think this is another proof (if we need more of them) that * we _really need_ to move away from the 1 thread per VM model -> http://gerrit.ovirt.org/#/c/29189/ and friends! Let's fire up the discussion! * we should move to cElementTree anyway in the near future: faster processing, scales better, nicer API. It is also a pet peeve of mine, I do have some patches floating but we need still some preparation work in the virt package. -- Francesco Romani RedHat Engineering Virtualization R & D Phone: 8261328 IRC: fromani ------=_Part_23935490_2012384362.1403872214216 Content-Type: text/x-python; name=xmlbench.py Content-Disposition: attachment; filename=xmlbench.py Content-Transfer-Encoding: base64 IyEvdXNyL2Jpbi9lbnYgcHl0aG9uCgppbXBvcnQgc3lzCmltcG9ydCB0aHJlYWRpbmcKaW1wb3J0 IHRpbWUKI2ltcG9ydCBseG1sLmV0cmVlCmltcG9ydCB4bWwuZG9tLm1pbmlkb20KaW1wb3J0IHht bC5ldHJlZS5jRWxlbWVudFRyZWUKaW1wb3J0IHhtbC5ldHJlZS5FbGVtZW50VHJlZQoKCmNsYXNz IFdvcmtlcih0aHJlYWRpbmcuVGhyZWFkKToKICAgIGRlZiBfX2luaXRfXyhzZWxmLCBmdW5jLCB4 bWwsIGRlbGF5LCBudW1ydW5zKToKICAgICAgICBzdXBlcihXb3JrZXIsIHNlbGYpLl9faW5pdF9f KCkKICAgICAgICBzZWxmLmRhZW1vbiA9IFRydWUKICAgICAgICBzZWxmLmZ1bmMgPSBmdW5jCiAg ICAgICAgc2VsZi54bWwgPSB4bWwKICAgICAgICBzZWxmLmRlbGF5ID0gZGVsYXkKICAgICAgICBz 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5 9

HP ILO2 , fence not working, with SSH port specified, a Bug?
by mad Engineer 29 Jun '14

29 Jun '14

hi i have an old HP server with ILO2 on manager i configured power management and configured SSH port to use for ILO2 for checking SSH i manually ssh to ILO and is working fine, but power management test always fail with "*Unable to connect/login to fencing device*" log shows its using fence_ilo instead of fence_ilo2 Thread-18::DEBUG::2014-06-30 08:23:14,106::API::1133::vds::(fenceNode) fenceNode(addr=XXXX,port=,*agent=ilo* ,user=Administrator,passwd=XXXX,action=status,secure=,options=ipport=22 ssl=no) Thread-18::DEBUG::2014-06-30 08:23:14,741::API::1159::vds::(fenceNode) rc 1 in agent=*fence_ilo* ipaddr=xxxxxxxxxx login=Administrator action=status passwd=XXXX ipport=22 ssl=no out err *Unable to connect/login to fencing device* *Manually testing* fence_ilo -a xxxxxx -l Administrator -p xxxxx -o status Status: ON but with ssh port specified ie *-u * fence_ilo -a xxxxxx -l Administrator -p xxxxx -o status -u 22 *Unable to connect/login to fencing device* So when we specify ssh port it fails and with out ssh port its working this is the case with ILO2 also for ilo3 and ilo4 since it does not ask for SSH port its working Is this a Bug Thanks,

2 2

Project vdsm-jsonrpc-java backup maintainer
by Sandro Bonazzola 29 Jun '14

29 Jun '14

Hi, looks like only one person has +2 / merge rights on vdsm-jsonrpc-java. I think every project should have a "backup" maintainer. Since it seems pkliczewski is the only committer there, I would like to propose him as maintainer too. -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

3 2

Tune HA timing,is it possible
by mad Engineer 29 Jun '14

29 Jun '14

Hi, Is it possible to tune time required to reboot VM in case of host failures. in our test we powered off one of the Host. Manager was still showing both Guest and Host as UP for around 5 minutes and after that it took another 4-5 minutes to start VM. Is there any tunable parameter that can be modified to bring down the time required to recognize Host failures. Thanks

2 1

[QE][ACTION REQUIRED] postponing beta release due to basic sanity test failure
by Sandro Bonazzola 28 Jun '14

28 Jun '14

Hi, while performing basic sanity test on 3.5.0 beta candidate I've seen the following bugs: Bug 1113882 - [ ERROR ] Failed to execute stage 'Closing up': [ERROR]::oVirt sdk is disconnected from the server. Bug 1113891 - storage domains are listed twice Bug 1113898 - New Virtual Machine dialog drop down list are all empty Bug 1113898 make impossible to create a new VM, so basic sanity test failed. We need to postpone beta release until this one is fixed. repoclosure test failed on F19: http://lists.ovirt.org/pipermail/users/2014-June/025475.html Since candidate beta build failed sanity test, I'm going to rebuild engine from master and repeat sanity test on the new build. -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

2 1

Engine - Changes to various issues around commands and queries construction and internal execution - please read
by Yair Zaslavsky 28 Jun '14

28 Jun '14

Hi all, Thanks to the help of Alon, oved, Tal, Moti, Arik and others, the following changes were introduced: 1. Internal commands invocation - When invoking an internal command from a command, please use the following : Instead of Backend.getInstance().runInternalAction... Use runInternalAction - a new method that was introdced at CommandBase. This method has two variants - one that accepts command context, and the other that does not have a command contet - runInternalAction(VdcActionType,VdcActionParametersBase,CommandContext) and runInternalAction(VdcActionType,VdcActionParametersBase) If CommandContext is not passed the context at the calling command will be cloned and set at the child command. If a Command context is pased - it should be the responsibility of the caller to clone, however, this will give the caller some degree of freedom to determine whether various parts of the context will be cloned, or not. Examples: runInternalAction(VdcActionType.AddPermission, permissionParams) has the same effect as : runInternlAction(VdcActionType.AddPermissiosn, permissionParams, getContext().clone()) runInternlAction(VdcActionType.AddPermissiosn, permissionParams, getContext().clone().withoutCompensationContext()) - will cause the compensation context to be reset, and let the child command determine the value of compensation context (at handleTransactivity method). The complete list of "context alteration methods" are - withCompensationContext(CompensationContext) , withoutCompensationContext() withLock(EngineLock), withoutLock() withExecutionContext(ExecutionContext), withoutExecutionContext() - bare in mind that all these follow the chaining method "design pattern" [1] (I would like to thank Moti for the naming suggestions) two methods for running InternalAction with context for tasks were created: runInternalActionWithTasksContext(VdcActionType, VdcActionParametersBase) runInternalActionWithTasksContext(VdcActionType, VdcActionParametersBase, EngineLock) These methods use ExecutionHandler.createDefaultContextForTasks to create the relevant command context to be passed to the child command. runInternalMultipleActions was introduced to command base in a similar manner, with 3 versions: runInternalMultipleActions(VdcActionType, ArrayList<VdcActionParametersBase>) runInternalMultipleActions(VdcActionType, ArrayList<VdcActionParametersBase>, ExecutionContext) runInternalMultipleActions(VdcActionType, ArrayList<VdcActionParametersBase>, CommandContext) 2. Queries invocation - runInternalQuery(VdcQueryType, VdcQueryParametersBase) was introduced to command base. Basically it takes the engine context from the current command context, and runs the internal query with it. EngineContext is the context which should hold all the common attributes to our flows at engine - currently it holds the engineSessionId, working towards moving correlationId to it as well. 3. Commands & Queries coding Each internal query should have a ctor that takes the parameters, and also the engine context . As some of the queries are both internal and non internal you may have two ctors - one with parameters only, one with parameters and EngineContext for example public class GetUnregisteredDiskQuery<P extends GetUnregisteredDiskQueryParameters> extends QueriesCommandBase<P> { public GetUnregisteredDiskQuery(P parameters) { this(parameters, null); } public GetUnregisteredDiskQuery(P parameters, EngineContext context) { super(parameters, context); } Notice that the ctor without the context calls the one with the context. Same happens at Commands: public RemovePermissionCommand(T parameters) { this(parameters, null); } public RemovePermissionCommand(T parameters, CommandContext commandContext) { super(parameters, commandContext); } 4. runVdsCommand was introduced to CommandBase as well runVdsCommand(VDSCommandType, VdsCommandParameters) - currently this just runs the vds command on vds broker, working on propagating the engine context via vds broker as well. Please use the above in your code. If you see any issues , or places where its problematic to use, feel free to contact me. [1] http://en.wikipedia.org/wiki/Method_chaining

2 1

Node down,but ovirt still shows VM as up
by mad Engineer 27 Jun '14

27 Jun '14

Hi, I am using Cisco UCS C200 M2 as Host running Centos 6.5 and KVM, Power Management not working properly,hence even with Node down Ovirt shows VM as still up,with uptime of VM increasing(on the manager) if i continue and save the changes its causing problems: 1. HA is not working ( Node status changed to Non responsive but VM status still up!! 2. Restart of Host gives wrong information-it shows host as rebooting but actually nothing is happening to Host!! While configuring power management: On ovirtmanager edited Power management and chose cisco_ucs with proper authentication to CIMC,but when clicked on test,it shows *Test Failed, Failed: You have to enter plug number Please use '-h' for usage * What is this plug,i couldn't find anything in CIMC This can be the reason for failure of HA and restart Can someone please help me fix this Thanks

1 0

Stats for oVirt Downloads: Jan-May 2014
by Brian Proffitt 27 Jun '14

27 Jun '14

All: For some time, traffic statistics for the sites in the ovirt.org domain (lists, resources, gerrit, and linode01) have been collected and organized using awstats[1] at stats.ovirt.org[2]. From the data provided for resources, I have been able to put together what should be a fairly definitive set of statistics for software downloads within the oVirt Project. Methodology The statistics that were analyzed were for five parts of the project: * Engine * Live * Node * Engine Reports * Engine dwh Downloads of the Engine RPM file, it was determined, would be indicative of actual oVirt installs. The allinone RPMs were not analyzed at this time, since installing this RPM is a choice made during the installation process itself. Tracking the Engine Reports and dwh RPMs was done to determine the popularity of these two tools and to ensure their numbers were comparable. To count downloads, data was gathered each month that listed the total downloads of every file, a number derived from the total hits each file had, minus any 206 hits, which indicated incomplete downloads. Key files for Engine, Engine Reports, and Engine dwh were identified and the data filtered to include counts for each one of the files, in whatever version released. Tracking of Live and Node RPMs was already set up within the awstats reporting, and was taken directly from awstats in each month. If there is any part of this methodology that is in error, feedback is very much appreciated. Presentation of Data Data was aggregated using Pivot Tables in Google Docs, and the application of SUMIFS functions in the same spreadsheet document. This document is still being formatted into a more presentable form, but until then, I wanted to deliver some preliminary results to the community for the first five months of the year. It will be noted that in general, download numbers are on the rise, particularly around the time oVirt 3.4 was released. There are significant gaps in downloads of Engine Reports and Engine dwh. I am still investigating the cause of this lack of data. Engine Jan 5815 Feb 4251 Mar 1980 Apr 10509 May 12043 Engine Reports Jan 0 Feb 1209 Mar 0 Apr 10282 May 9647 Engine dwh Jan 0 Feb 603 Mar 0 Apr 9974 May 10311 Live Jan 845 Feb 757 Mar 739 Apr 1981 May 1187 Node Jan 95 Feb 757 Mar 739 Apr 1981 May 1187 Thanks for Alon Bar-Lev and Michael Scherer for their invaluable assistance with this data gathering and reporting. BKP [1] http://awstats.sourceforge.net/ [2] http://stats.ovirt.org/ -- Brian Proffitt oVirt Community Manager Project Atomic Community Lead Open Source and Standards, Red Hat - http://community.redhat.com Phone: +1 574 383 9BKP IRC: bkp @ OFTC

2 2

multipath configuration
by Yeela Kaplan 27 Jun '14

27 Jun '14

Hi, Currently multipath.conf is being rotated each time we reconfigure it. We'd like to change the behaviour for multipath.conf so that current configuration will be commented out and we'd stop rotating (in the same manner as libvirt conf works today). Does anybody have any comment for/ against? Thanks in advance, Yeela

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Note on SearchableListModel.supportsServerSideSorting override
by Vojtech Szocs 27 Jun '14

27 Jun '14

Hi guys, I see that some UiCommon models, such as VmListModel, already have override for SearchableListModel.supportsServerSideSorting method. In general, any SearchableListModel subclass should contain: @Override public boolean supportsServerSideSorting() { return true; } if, and only if, its syncSearch method uses VdcQueryType.Search (Search query). This applies to all SearchableListModel subclasses, i.e. both main tab & sub tab list models. Due to current class inheritance where sub tab list models (like ClusterVmListModel) extend main tab list models (like VmListModel), please make sure to check following scenario: - main tab model uses Search query, supportsServerSideSorting=true - sub tab model does NOT use search query --> must provide override supportsServerSideSorting=false Thanks, Vojtech

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Call for Papers in Two Weeks: Linux.conf.au
by Brian Proffitt 27 Jun '14

27 Jun '14

Conference: Linux.conf.au Information: Each year open source geeks from across the globe gather in Australia or New Zealand to meet their fellow technologists, share the latest ideas and innovations, and spend a week discussing and collaborating on open source projects. The conference is well known for the speakers and delegates depth of talent, and its focus on technical linux content. Possible topics: Virtualization, oVirt, KVM, libvirt, RDO, OpenStack, Foreman Date: January 12-15, 2015 Location: Auckland, New Zealand Website: http://lca2015.linux.org.au/ Call for Papers Deadline: July 13, 2014 Call for Papers URL: http://lca2015.linux.org.au/cfp Contact me for more information and assistance with presentations. -- Brian Proffitt oVirt Community Manager Project Atomic Community Lead Open Source and Standards, Red Hat - http://community.redhat.com Phone: +1 574 383 9BKP IRC: bkp @ OFTC

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Host not restarting through manager
by mad Engineer 27 Jun '14

27 Jun '14

Hi, I have two UCS server,both are configured for power management, but when i put host to maintenance and restart it by selecting power management>restart on the OVirt Manager it shows as rebooting but the host is not really rebooting,i had the same issue with HP servers ILO2. What should i do to make it work Also under Host>power management>test is failing with "Test Failed, Failed: You have to enter plug number Please use '-h' for usage" Thanks for any help

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[ACTION REQUIRED] unresolved deps for ovirt-optimizer-ui
by Sandro Bonazzola 26 Jun '14

26 Jun '14

package: ovirt-optimizer-ui-0.1-1.fc19.noarch from ovirt-3.5-beta-sanity unresolved deps: ovirt-optimizer-webadmin-portal >= 0:3.4 -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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[QE] [ACTION NEEDED] oVirt 3.5.0 Beta / branching delay
by Sandro Bonazzola 26 Jun '14

26 Jun '14

Hi, I started building ovirt-engine this morning as soon as ovirt infra team patches have been merged. The build is still running since 6 hours ago due to heavy load of jenkins slaves, so we couldn't perform basic sanity tests on the build yet. The build is based on git hash 54d6a0bba7e9d62f2ec3bd16157ca2387b57ab58 and is running here [1] As soon as it finishes we'll publish it on nightly master snapshot and will be tested tomorrow morning. If sanity test passes, the ovirt-engine-3.5 branch will be created from above hash with the content of the snapshot including the build [1]. Any other change to the repo other than critical fixes (like missing dependency fixes or new builds addressing critical issues) shouldn't be allowed in that yum repository. If you're aware of any critical issue fixed later than 54d6a0bba7e9d62f2ec3bd16157ca2387b57ab58 please let us know as soon as possible. Note to VDSM team, I see VDSM already branched a few days ago but in nightly snapshot builds are still coming from master branch and no jenkins job has been created for building from 3.5 yet. Please provide the right RPM needed for this beta release or the one built from master will be taken. I'm sorry for the delay. [1] http://jenkins.ovirt.org/job/ovirt-engine_master_create-rpms_merged/2105/ -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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